Martin Storsjö <[email protected]> added the comment: I ran into the same issue recently. It turned out to be that the machine lacked yasm but used nasm instead. (After upgrading the latest yasm, I forgot to rerun configure, since I thought I actually had it installed already, and it took me a while to figure out.) Thus, installing yasm or disabling it (--disable-yasm?) so nasm won't be used instead probably are the best suggestions for now.
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